Purolator Puro-green 13™ High Efficiency Filters, MERV Rating : 13

Puro-green 13 filters are Classified U.L. Class 2 per U.L. Standard 900. They have a moisture resistant beverage board frame, are made of 100% synthetic media with 17.5 pleats per foot. Puro-green 13 filters are rated MERV-13 making them a sustainable component for LEED/Green Building Initiative